Dizziness occurs after taking medication for hypertension. There may be several reasons for this: 1. The patient’s blood pressure has not dropped to the ideal state after taking the medication, but is still relatively high, so the medication should be adjusted and dropped to the ideal state. 2. The patient’s blood pressure has dropped relatively low after taking the medication and there is insufficient blood supply to the brain. 3. Check. After taking oral medication, it is recommended that hypertensive patients monitor their blood pressure regularly to prevent it from fluctuating too much, and blood pressure that is too low or too high can cause hypertensive complications.